Trump: 'If Hillary Clinton were a man, she wouldn't get 5% of the vote'

Donald Trump on Tuesday doubled down on a frequent claim that Hillary Clinton's backers only support her because of her gender.

During a press conference following a primary sweep Tuesday night, the Republican presidential frontrunner reiterated his suggestion that Clinton was "playing the women's card."

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"I think the only card she that she has is the women's card. She's got nothing else going for her," Trump said.

He continued: "If Hillary Clinton were a man, I don't think she'd get 5% of the vote."

Trump, whose unfavorable rating among women is higher than any other presidential candidate, also suggested that female voters don't support Clinton, though she's outperformed Democratic presidential rival Sen. Bernie Sanders among female Democratic primary voters.

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"And the beautiful thing is that women don't like her, OK? And look how well I did with women tonight," Trump said.

For her part, Clinton has already turned Trump's attack into a talking point on the campaign trail.

At her primary night party on Tuesday, Clinton brushed off Trump's comments.

"The other day Mr. Trump accused me of 'playing the woman card,'" Clinton said. "If fighting for women's healthcare, and paid family leave and equal pay is 'playing the woman card,' then deal me in."

See scenes from yesterday's primaries and rallies: